BMP vs SR2
Una comparativa detallada de BMP Image y Sony RAW SR2 — tamaño de archivo, calidad, compatibilidad y cuál elegir según tu flujo de trabajo.
BMP Image
Raster & Vector ImagesBMP is an uncompressed raster image format native to Windows. Files are large but preserve exact pixel data with no compression artifacts. Rarely used on the web due to file size.
Sobre los archivos BMPSony RAW SR2
Raster & Vector ImagesSR2 is an older Sony RAW format used in some Sony Alpha cameras. Newer Sony cameras use ARW instead.
Sobre los archivos SR2Comparativa de ventajas
BMP Ventajas
- Dead-simple format — trivially easy to read and write.
- Lossless and uncompressed — perfect bit-exact pixel storage.
- Universally supported in Windows applications since 1985.
- Supports 1, 4, 8, 16, 24, and 32-bit color depths.
SR2 Ventajas
- Full Sony Alpha early-era sensor data preserved.
- Supported by major raw processors.
- Metadata includes Konica Minolta pre-Sony era compatibility.
Limitaciones
BMP Limitaciones
- Enormous file sizes — no meaningful compression in typical use.
- Not a web format — browsers support it but nobody serves BMPs over HTTP.
- No metadata support (no EXIF, no ICC profile in practice).
- Multiple header versions mean "a BMP" is ambiguous — parsers must handle several variants.
SR2 Limitaciones
- Transitional format — limited to 2006-2008 bodies.
- Superseded by ARW.
- Proprietary with no public spec.
- Essentially legacy — no new content.
Especificaciones técnicas
| Especificación | BMP | SR2 |
|---|---|---|
| MIME type | image/bmp | image/x-sony-sr2 |
| Extensions | .bmp, .dib | — |
| Compression | None (typical); RLE 4/8 bit (rare) | — |
| Color depths | 1, 4, 8, 16, 24, 32 bits per pixel | — |
| Byte order | Little-endian | — |
| Extension | — | .sr2 |
| Container | — | TIFF/EP with Sony MakerNote |
| Successor | — | .arw (2008+) |
| Ancestor | — | .mrw (Konica Minolta) |
Tamaños típicos de archivo
BMP
- Small icon (32×32) 4 KB
- Screenshot (1920×1080) ~6 MB
- 4K image (3840×2160) ~25 MB
- Scanned A4 at 300 dpi ~25 MB
SR2
- 10 MP SR2 (Alpha 100) 12-18 MB
- 12 MP SR2 (Alpha 700) 15-22 MB
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Preguntas frecuentes
BMP (Bitmap) is a raster image format developed by Microsoft for Windows. It stores images with no compression by default, resulting in large file sizes but pixel-perfect quality. It has been part of Windows since version 1.0.
BMP (Bitmap) is a raster image formato developed by Microsoft para Windows. It stores images com no compressão by default, resulting in large tamanho do arquivos mas pixel-perfect quality. It has been part of Windows since version 1.0.
BMP files open in Windows Paint, Photos, macOS Preview, GIMP, Photoshop, and virtually any image viewer. All Windows applications support BMP natively.
BMP arquivos abrir in Windows Paint, Photos, macOS Preview, GIMP, Photoshop, e virtually any image viewer. All Windows aplicativos support BMP natively.
PNG is better than BMP in almost every scenario since it provides lossless compression (smaller files), transparency support, and wider cross-platform use. BMP is mainly relevant for legacy Windows applications.
PNG is melhor que BMP in almost every scenario since it fornece sem perdas compressão (smaller files), transparência support, e wider cross-platform use. BMP is mainly relevant para legacy Windows aplicativos.